Grain-door for cars.



F. A. MGGOMBER.

GRAIN DOOR FOR CARS.

APPLIUATION FILED mm. s. 1910.

Patented Aug. 23, 1910.

2 SHEETS-SHEET l.

P. A. MUOOMBER.

GRAIN DOOR FOR CARS.

APPLICATION nun JUNE 8. 1910,

Patented Aug. 23, 1910.

2 SHEETS-SHEET 2.

o o I o o o ::::I

o i o FRANK AUSTIN mccomnn'n, or MARSHALLTOWN, IOWA.

GRAIN-DOOR FOR CARS.

Specification of iiettrs Patent.

Patented Aug. 23, 1910.

Applicationfiled June 8, 1910. Serial No. 565,682.

To all whom it may concerni Be it known that I, FRANK AUSTIN Mo- CoMBER,a citizen of the United States, residing at Marshalltown, Marshall andState of Iowa, have invented new and useful Improvements in Grain- Doorsfor Cars, of which the following is a specification.

My present invention pertains to freight car doors of the horizontalsliding type, and is designed more particularly as an improvement uponthe door disclosed in my Letters- Patent of April 5, 1910, numbered954,326.

One of the objects of the present invention is to provide a slidingdoor, designed especially for use as a grain door, and constructed toresist the pressure of grain and to prevent the escape of grain past itslower and vertical edges.

Another object is the provision of a slidable grain door that is adaptedto be freely moved to and from its closed position without liability ofbinding or displacement.

Another object is the provision of improved means for fastening thegraindoor and the relief door with which the same is preferably equipped.

The present invention will be best understood by reference to thefollowing description when taken in connection with the accompanyingillustration of one specific embodiment there, while its scope will bemore particularly pointed out in the appended claims.

In the drawings which constitute part hereof: Figure l is a sideelevation showing my novel door as fastened in its closed position. Fig.2 is a vertical section on the line 22 of Fig. 1. Fig. 3 is a horizontalsection on the line 33 of Fig. 1. Fig. 4 is a side elevation showing thedoor in its open position. Fig. 5 is a horizontal section taken in theplane indicated by the line .-5 of Fig. 1, looking downward. Fig. 6 is aperspective of a portion of the grain door.

- Similar letters designate corresponding parts in all of the views of,the drawings,

referring to which:

A is a facing surrounding the door opening B in the side wall C of -,acar and projecting outward a slight distance be ond said wall. The lowerportion of the righthand upright comprised in said facing is undercut,as lndicated by D in Fig. 5; and

in the county of in the lower horizontal portion of the facingis formeda longitudinal groove E that is open atits right-hand end, Fig. 4.

F is an upright keeper fixed to the lefthand upright of the facing A anddesigned to receive the left-hand end of the grain door G and crowd thesame inward to assure' a' tight'closure of said end, and H is ahorizontal track disposed below the lower portion of the facing A andcomprising an inner longitudinal bar-a, an outer longitudinal bar I),and anti-friction wheels a spaced apart and mounted between the saidbars a and b. The inner bar a is fixed to a strip 03, disposed below thefacing A, and to spaced strips e at the right of said facing A, betweenwhich strips e and also between the wheels 0 openings are afi'orded,Fig. 5, designed to enable dirt and sweepings from the inside of the carto drop, with a view to preventing the same collecting and interferingwith the opening and closing of the door.

I is a fixed retainer which extends toward the right from the facing Aand is designed to prevent outward movement of the upper edge of thegrain-door G when the latter is open, and J is a fixed stop for limitingmovement of the grain-door toward the right.

The grain door G is preferably, though not necessarily, of steel orother suitable sheet-metal, and is preferably provided adjacent itsright-hand end with an outwardlydirected flange f, designed to afford ahold when the door is to be opened or closed. The said grain door restsand is designed to be moved on the. wheels 0, which are arranged aslight distance below the upper edge of the bar b, and is provided onits outer side with traveling wheels 9 which bear on the upper edge ofthe said bar I). Adjacent its lower edge the door G is provided with aninwardly directed horizontal flange K which is designed, when the door1s closed, to enter and occupy the groove E inthe lower facing portion.The arrangement of the lower edge of the door G at "the inner side ofthe track bar I) prevents outward movement of said edge when the same issubjected to'the pressure of grain carried in bulk, and the dispositionof the door flange K in the groove E effectually prevents the downwardescape of grain when the door is closed, and also prevents upwardjumping of the door during the opening and closingthereof. At itsrighthand edge the door G is provided with an inwardly and forwardlyinclined flange L which serves, when the door is closed, to lap theundercut right-hand portion D of the facing A and in that wayeffectually. prevent leakage of grain at the right-hand edge of theclosed door. It will also be observed that when the closed door issubjected to the outward pressure of grain, the flange L will be pressedoutward against the inner side of the undercut portion D, the lowerportion of the door will be pressed outward against the inner side ofthe track bar I), and the left-hand edge portion of the door will.bepressedoutward against the keeper F, and in consequence the escape ofgrain at all points will be precluded; the arrangement of the flange Lin the groove E preventing the downward passage of grain from the dooropening, when the door is pressed outward as stated. Attention is alsoinvited here to the fact that when the door is closed, the flange Kcloses the right-hand end of the groove E and prevents leakage of grainat that point.

At M the door G is provided with a vertically slidable relief doorhaving an outwardly and upwardly extending projection X, and at P alocking bar Q is loosely con- 'nected with the side wall of the car. Thesaid locking bar Q is notched at m to engage 'the projection N, and isprovided with a hinged end portion R, apertured at p and designed to beplaced over the pin S on the door and fastened by the chained hook T andseal U. When the locking bar is thus fastened, the relief door M is heldagainst upward movement, and opening or movement of the door G towardthe right is prevented. When, however, the locking bar is disconnectedfrom the pin S and lifted from the projection N, the relief door M maybe raised to permit grain to flow out and lessen the pressure againstthe inner side of the door G, and then said door G may be readily movedtoward the right.

V is an upper horizontally slidable door, and W is a fixed horizontaltrack-for the same; the said track extending above the door opening anda suitable distance to the left of the same.

I At X is an upright keeper to receive the right-hand end of the door Vwhen the latter is closed, and at Z is a stop for limiting movement ofthe door V toward the left, while at Z is a guardg designed to preventflapping of the door V away from and toward the side of the car, whensaid door Vis not in use.

Fixedto and depending from the door V A is a bar A on which is a hingedsection 13 having apertures to receive the pin S and the auxiliary pin Son the door G.

lVhen both doors G and V are to be fas-' tened in their closedpositions, the hinged end portion R of the locking bar Q is first placedon the lower pin S, after which the section B of bar A is placed -onboth pins S and S and secured by the hook and seal before described. A

The upper door V need not be used except in bad weather or when the caris to be used to carry freight other than grain in bulk, and from thisit follows that when desired the upper door V and the parts appurtenantthereto may be dispensed with-without affecting my present invention.

Having described my invention, what I claim and'desire to secure byLetters-Patent, is:

1. The combination of a wall in which is an opening, a facing having aportion disposed below the opening and portions disposed at oppositesides of said opening and also having a longitudinal groove in thefirst-named portion, and an undercut in one of the second-namedportions, an upright keeper on the other of the second-named portions ofthe facing, a track bar spaced from the wall, anti-friction meansmounted between said wall and bar, a door slidable toward and from thesaid upright keeper and having an inwardly directed flange disposed tooccupy the .groove in the firstnamed portion of the facing and alsohaving on its upright edge remote from the keeper an inwardly andforwardly directed flange disposed to enter the undercut of the facingportion, anti-friction means carried on the door and bearing on the saidtrack bar, and a retainer for the upper edge of the door fixed to thewall and disposed at the opposaid opening and also having a keeper atone side of the openin g and=an -undercutportion 10 at the opposite sidethereof; of a track bar spaced from the wall, a door slidable betweenthe wall and track bar and toward and from the keeper and having aninwardly directed flange disposed to occupy the longitudinal groove ofthe wall, and an inwardly and forwardly directed flange disposed to lapthe said undercut portion and means carried by the door and bearing onthe track bar.

3. The combination with a wall having an opening and a longitudinalgroove below said opening and an undercut portion at one side of theopening; of a suitably-mounted slidable door having an inwardly directedflange disposed to occupythe longitudinal wardly and forwardly directedflange disposed to lap the said undercut portion.

4. The combination of a wall having an groove of the wall and alsohaving an inopening, a suitably-mounted slidable door having a'pin, aslidable relief door carried by the first-named door and having aprojection, and a locking bar loosely connected with the wall andengaging the projection of the relief door and connected to the pinofthe first-named door.

5. The combination with a wall having an opening and a longitudinalgroove below 10- said opening; of a suitably-mounted slidable doorhaving an inwardly-directed flange disposed. to occupy said groove.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

FRANK AUSTIN MGCOMBER.

Witnessesi F. E. NonTHUP, F. E. BARRETT.

